Exorcists
GW canon
Summary
Daemon-hunting Dark Founding Chapter whose aspirants endure a possession trial and which hosts a radical Inquisition sect.
Allegiance
Loyalists
Founding
13th Founding (Dark Founding)
Homeworld
Banish (world, fortress-monastery Basilica Malefex)
Colours
Deep red with bone aquila, horned skull on the left shoulder and black trim
Doctrine
Combating Daemons; scouts and intelligence
Epoch
M35–M42
Chapter Strength
Unknown; Codex structure plus two Neophyte Scout companies
History
The Exorcists were formed in late M35 or early M36 in the Dark Founding from Imperial Fists gene-seed; their founding is regarded as dubious, with only one message from Genetor-Major Lauram Clelland surviving. After Chapter Master Enoch Trismegistus was possessed on Totem IV, the Radical Plutonians sect of the Ordo Malleus was allowed to stay on Banish and introduced possession trials for aspirants.
Notes
Every Marine undergoes Daemonic Possession Therapy: twelve hours of possession by a minor Daemon in the Hall of Tempering, then expulsion; some do not survive. The offshoot Swords of Epiphany fell to Chaos.
Additional Information
Founding, detail
Late M35 or early M36
Allegiance, detail
Tolerates the radical Plutonians sect of the Ordo Malleus on Banish; the offshoot Swords of Epiphany went over to Chaos.
Source note on the founding
The Lexicanum itself calls the founding story dubious; only a single message survives.
Sources
Lexicanum, article “Exorcists” (revision 774815, retrieved 25 Oct 2026): https://wh40k.lexicanum.com/wiki/Exorcists